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Schweizer SGS 1-35

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Aircraft model · Glider · Glider · registry code 8050148

Manufacturer (registry)
SCHWEIZER
Model
SGS 1-35
Registry code
8050148
Registered
28 aircraft
Type
Glider
Engines
None
Seats
1
Weight class
Up to 12,499 lb
Cruise speed
105 mph
Certification
Type certificated
Data sheet
TCDSG4EA
Holder
K & L Soaring LLC

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.

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Aircraft by year built · 50

1973Registered nowDeregistered2026

Airworthiness directives that may apply · 1

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('8050148'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Registered aircraft · 28

N135ALBlack Industries LLC · Helena, MTS/N 40N135BDDierker Robert R · Chestertown, MDBuilt 1975 · S/N 24N135KLK & L Soaring LLC · Cayuta, NYBuilt 1975 · S/N 43
See all 28 registered aircraft
Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('8050148')
  ORDER BY n_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB investigations · 24

Aircraft matched to this model through the registry, by N-number and event date, checked against the reported serial number, make and model.

Defining event, 2008 on

Of 3 cases NTSB coded with a defining event. All defining events

In the probable cause, 2008 on

Findings NTSB made part of the probable cause. A case can have several. All findings

First occurrence, 1982 to 2007

Of 9 cases with NTSB’s older coding, defined in its coding manual.

NTSB CEN21LA281Accident · Minor injuriesClass 4 · LimitedFinal reportSchweizer SGS 1-35 · Wellington, COThe glider pilot’s loss of visual references during the landing approach resulting in an off-airport landing on rough sloping terrain.Jun 20, 2021 · N2851H · Substantial damageNTSB ERA21FA239Accident · 1 fatalClass 3 · FieldFinal reportSchweizer SGS 1-35 · Wurtsboro, NYThe pilot’s low-altitude release from tow for reasons that could not be determined, and his subsequent exceedance of the glider’s critical angle of attack while returning to the runway, which resulted in an aerodynamic stall and impact with terrain.Jun 6, 2021 · N2878H · Substantial damageNTSB GAA18CA557Accident · No injuriesData collectionFinal reportSchweizer SGS 1 35 · Burnet, TXThe pilot's failure to extend the landing gear before landing and to use the Before Landing checklist.Sep 1, 2018 · N34107 · Substantial damage
See all 24 investigations
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('8050148')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

FAA incident reports · 24

Matched to this model through the registry, by N-number and event date, checked against the reported make and model.

Accident 20210620007909ASchweizer SGS 1-35 · Wellington, COOn June 20 2021 at 1800 N2851H sustained substantial damage during an off airport landing at Owl Canyon gliderport 4CO2. The PIC had trailered his glider to this gliderport. He had never flown out of this airport before. During his first approach and landing…Jun 20, 2021 · N2851H · Substantial damageAccident 20210606014829ASchweizer SGS 1-35 · Wurtsboro, NYGlider N2878H was under tow on climb out from runway 23 at N82, at approximately 200FT AGL the glider disconnected from the tow plane and began a descending turn to the right in an attempt to return to N82. The aircraft cleared a row of hangars at the south…Jun 6, 2021 · N2878H · Destroyed · 1 fatalAccident 20180901012729ASchweizer SGS 1-35 · Burnet, TXOn 09/01/2018 at approximately 1200-1300 hours, the airman, [privacy data omitted] took off from front line flyers glider port in briggs, TX. He received aerial tow to about 2500 feet above ground level (AGL). Pilot found thermal to 5-6000 feet and flew to…Sep 1, 2018 · N34107 · Substantial damage
See all 24 incident reports
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('8050148')
  ORDER BY event_date DESC, report_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Service difficulty reports · 1

SDR 2019FA0000336Seal · looseSTATIC PORTS AS INSTALLED WERE INITIALLY GLUED TO THE FUSELAGE SKIN, THE ADHESIVE MATERIAL IS NOW DRIED OUT LEAVING THE STATIC SYSTEM INEFFECTIVE AND INOPERATIVE. LEAVING THE PRIMARY FLIGHT INSTRUMENTS INOPERATIVE.Oct 11, 2019 · N65883 · Scwzer SGS135 · Pitot/Static System
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = 'SGS135'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

STCs that may be installed · 2

Approved for this model: the STC’s model list names it on its data sheet, or a series that includes it. The registry doesn’t record which STCs an aircraft has.

STC SA01734SEApplication of Stewart Systems synthetic fabric covering system to aircraft fuselage, wings, tail surfaces, control surfaces and related parts.Andrew D. HumphreySTC SG01164CHInstall Cooper superflite 102 fabric.Aviation Products Systems Inc.
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date, m.matched_model
  FROM (
    SELECT stc_number, min(matched_model) AS matched_model
    FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_stc.parquet'
    WHERE aircraft_model_code IN ('8050148')
    GROUP BY stc_number
  ) m JOIN 'https://openairdocs.org/data/latest/faa_stc.parquet' s USING (stc_number)
  ORDER BY s.status = 'Current' DESC, s.status_date DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.